Do You Think You're Clever?

Read Do You Think You're Clever? Storyline:

This is a book for everyone who likes to think they're clever, or who thinks they'd like to be clever. And cleverness is not just knowing stuff, it's how laterally, deeply and interestingly you can bend your brain. Guesstimating the population of Croydon, for example, opens a chain of thought from which you can predict the strength of a nuclear bomb … and that's just the start of it.